JP6893886B2 - Condensed liquid laundry detergent composition - Google Patents

Description

The present invention is in the field of liquid laundry detergent compositions and methods of their use.

There is a move in the industry to use so-called condensed liquids that minimize the concentration of water used. Such liquid laundry detergent compositions require the presence of anionic surfactants such as linear alkylbenzene sulfonates to provide a cleaning effect on the fabric. Hydroxy-containing amine compounds are used to form a phase-stable (ie, non-phase-separated composition) condensed liquid. However, it now minimizes the concentration of such hydroxyl-containing amine compounds in condensed liquids as it reacts with certain perfume materials, especially aldehyde and ketone perfume materials, to cause unwanted discoloration of the composition. Is desired.

Formulators desire to use such aldehyde and ketone materials to provide a consumer-favorite scent experience from a condensed liquid laundry detergent composition. However, removal of the hydroxyl-containing amine compound causes the composition to phase-separate, causing problems in accurate loading of the components into the cleaning solution.

Therefore, there is a need for a condensed liquid that is phase stable and contains an aldehyde-containing air freshener, a ketone-containing air freshener, and a mixture thereof.

Surprisingly, it has been found that the condensed liquids of the present invention are phase stable while blending aldehyde-containing air fresheners, ketone-containing air fresheners, and mixtures thereof, with minimal discoloration of the composition. It was issued.

Liquid laundry detergent composition
-With 0.001% to 5% by weight of the composition, an aldehyde-containing air freshener material, a ketone-containing air freshener material, or a mixture thereof.
− 5% to 40% by weight of the composition having a molecular weight of 20 to 400 and 50% to 80% at 20 ° C. as measured through the alcohol eRH test described herein. Alcohol with eRH and
− 10% to 30% by weight of the composition, non-amine neutralized linear alkylbenzene sulfonate,
-With less than 5% by weight hydroxyl-containing amine of the composition,
-A liquid laundry detergent composition comprising 0.5% to 15% by weight of water of the composition.

Liquid laundry detergent composition
-With 0.001% to 2% by weight of the composition, an aldehyde air freshener material, a ketone air freshener material, or a mixture thereof.
− 5% to 40% by weight of the composition, ethylene glycol, 1,3 propanediol, 1,2 propanediol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, 2,3-butanediol, 1, 3 Alcohol selected from the group containing butanediol, diethylene glycol, triethylene glycol, polyethylene glycol, glycerolformaldipropylene glycol, polypropolene glycol, dipropylene glycol n-butyl ether, and mixtures thereof, preferably 1,2 propane. A solvent selected from the group containing diols, dipropylene glycols, polypropolene glycols, 2,3-butanediols, dipropylene glycol n-butyl ethers, and mixtures thereof.
− 10% to 30% by weight of the composition, non-amine neutralized linear alkylbenzene sulfonate,
-With less than 5% by weight hydroxyl-containing amine of the composition,
-A liquid laundry detergent composition comprising 0.5% to 15% by weight of water of the composition.

The entire liquid laundry detergent composition of the present invention is substantially liquid. That is, the composition has liquid properties rather than a solid or granular composition, even if it contains solids dispersed in the liquid phase. In connection with the laundry detergent compositions of the present invention, the term "liquid" includes forms such as dispersions, gels, pastes and the like. The liquid composition may contain a gas in a preferably subdivided form. However, liquid compositions exclude forms that are entirely non-liquid, such as tablets or granules.

The term "liquid laundry detergent composition" refers to any laundry detergent composition that includes a liquid that can wet and process fabrics in a household washing machine, eg, wash clothes.

The liquid composition may be formulated in a unit dose article. The unit dose article of the present invention comprises a water-soluble film that completely encloses the liquid composition in at least one compartment. Suitable unit dose articles are described in more detail below.

The liquid laundry detergent composition may be used as a fully formulated consumer product or may be added to one or more additional ingredients to form a fully formulated consumer product. The liquid laundry detergent composition may be a "pretreatment" composition that is added to the fabric, preferably the stain on the fabric, before the fabric is added to the cleaning solution.

The composition of the present invention contains 0.001% to 5% by weight of the composition, an aldehyde-containing air freshener material, a ketone-containing air freshener material, or a mixture thereof. Suitable aldehyde-containing air freshener materials and ketone-containing air freshener materials will be described in more detail below.

The liquid laundry detergent composition contains 10% to 30% by weight of the linear alkylbenzene sulfonate of the composition.

Preferably, the liquid laundry detergent composition comprises less than 10% by weight, even less than 5% by weight, or even less than 2% by weight of the liquid laundry detergent composition, and the anionic surfactant. The sex surfactant is preferably selected from the group containing linear alkylbenzene sulfonates, alkyl sulfates, and mixtures thereof.

The liquid laundry detergent composition may contain 0.5% to 20% by weight of water of the composition and may have an equilibrium relative humidity of less than 65% at 20 ° C.

The composition comprises less than 5% by weight of the hydroxyl-containing amine compound of the composition. Suitable amines are described in more detail below.

The liquid laundry detergent composition may include a structuring agent . Suitable structuring agents will be described in more detail below.

The liquid laundry detergent composition of the present invention may contain auxiliary ingredients.

Preferably, the liquid laundry detergent composition has a viscosity of 300 mPa · s to 700 mPa · s, more preferably 350 mPa · s to 600 mPa · s at a shear rate of 1000 s- ^1. An exemplary method for measuring viscosity is to use a TA instruments rheometer DHR1 with a gap of 1000 μm at 20 ° C. according to the manufacturer's instructions.

Aldehydes and Ketones The compositions of the present invention contain 0.01% to 5% by weight, or even 0.002% to 4% by weight, or even 0.005% to 3% by weight, of the composition. Alternatively, it contains 0.1% to 2% by weight of an aldehyde-containing fragrance material, a ketone-containing fragrance material, or a mixture thereof.

The aldehyde-containing material is an organic compound characterized by having a carbonyl group bonded to a hydrogen atom.

The ketone-containing material is an organic compound characterized by having a carbonyl group bonded to two carbon atoms.

The aldehyde and ketone-containing material of the present invention also needs to be an air freshener material. The air freshener material has an odor that can be perceived by most humans. Preferably, the aldehyde-containing and ketone-containing air freshener materials have a molecular weight range of 75-450, or even 80-400, or even 85-350. Preferably, the aldehyde-containing and ketone-containing fragrance material has a log P of 0.25 to 7, or even 0.5 to 6.75, or even 0.75 to 6.5. Preferably, the aldehyde-containing and ketone-containing fragrance materials, Pa of 25 ° C. at ^{3.3 × 10 -3 ~1.3 × 10 4} (2.5 × 10- 5 ~9.5 × 10 1) (mmHg ) Has vapor pressure.

Aldehyde or ketone-containing fragrance materials are (2E, 6E) -nona-2,6-dienal, 2,6,10-trimethylundec-9-enal; 1-methyl-4- (4-methylpenta-3-3). Enyl) Cyclohexa-3-ene-1-carbaldehyde; (E) -1- (2,6,6-trimethyl-1-cyclohex-2-enyl) But-2-en-1-one; (E)- 4- (2,6,6-trimethyl-1-cyclohexa-2-enyl) but-3-en-2-one; 2-benzylideneheptanal; (E) -1- (2,6,6-trimethyl-) 1-Cyclohexenyl) but-2-ene-1-one; 4- (2,6,6-trimethylcyclohexane-1-yl) but-3-en-2-one; 3- (4-tert-butylphenyl) ) Propanal, (2Z) -2-benzilidenhexanal; 3- (4-methoxyphenyl) -2-methylpropanal; 3,7-dimethylocta-2,6-dienal; 2- (3,7-dimethylocta) -6-Enoxy) acetaldehyde; 3- (4-propan-2-ylphenyl) propanal; 3- (4-propan-2-ylphenyl) butanal; (E) -1- (2,6,6-trimethyl) -1-Cyclohexa-1,3-dienyl) buta-2-ene-1-one; 1- (2,6,6-trimethyl-1-cyclohexa-3-enyl) but-2-en-1-one; 4-ethoxy-3-hydroxybenzaldehyde; 5-methylhepta-2-ene-4-one; 3- (2-ethylphenyl) -2,2-dimethylpropanol; 3- (3-isopropylphenyl) butanal; 1- (5,5-dimethyl-1-cyclohexenyl) penta-4-en-1-one; (E) -3-methyl-4- (2,6,6-trimethyl-1-cyclohex-2-enyl) porcine -3-En-2-one; 3- (1,3-benzodioxol-5-yl) -2-methylpropanol; 1,3-benzodioxol-5-carbaldehyde; 2- (phenyl) Methylidene) octanal; (E) -1- (2,4,4-trimethylcyclohex-2-ene-1-yl) but-2-ene-1-one; 3- (4-methyl-1-cyclohexa) -3-Enyl) butanal; 2,6-dimethylhepta-5-enal; 6-methylhepta-5-en-2-one; methylphenyl) methylidene] heptanal; 5,5-dimethyl-2,3,4 4a, 6,7-Hexahydro-1 H-Naphthalene-2-carbaldehyde; 2- [2- (4-methyl-1-cyclohexa-3-enyl) propyl] cyclopentane-1-one; 2,4-dimethylcyclohexa-3-ene-1- It may be selected from the group containing carbaldehide; undeca-10-enal; 4-hydroxy-3-methoxybenzaldehyde; 4-methoxybenzaldehyde, and mixtures thereof.

The aldehyde or ketone-containing fragrance material is preferably (E) -1- (2,6,6-trimethyl-1-cyclohex-2-enyl) but-2-en-1-one; (E) -4. -(2,6,6-trimethyl-1-cyclohex-2-enyl) porcine-3-en-2-one; (E) -1- (2,6,6-trimethyl-1-cyclohexenyl) porcine- 2-En-1-one; 4- (2,6,6-trimethylcyclohexane-1-yl) buta-3-en-2-one; 3,7-dimethylocta-2,6-dienal; 3-( 4-Propane-2-ylphenyl) butanal; (E) -1- (2,6,6-trimethyl-1-cyclohexanone-1,3-dienyl) but-2-ene-1-one; 1- (2) , 6,6-trimethyl-1-cyclohexan-3-enyl) buta-2-ene-1-one; 4-ethoxy-3-hydroxybenzaldehyde; 3- (2-ethylphenyl) -2,2-dimethylpropanal 3- (3-Isopropyl) butanal; 1- (5,5-dimethyl-1-cyclohexenyl) penta-4-ene-1-one; (E) -3-methyl-4- (2,6) 6-trimethyl-1-cyclohex-2-enyl) buta-3-en-2-one; 1,3-benzodioxol-5-carbaldehyde; 2- (phenylmethylidene) octanal; 2,4-dimethyl You may choose from the group containing cyclohexan-3-ene-1-carbaldehyde; undeca-10-enal; 4-hydroxy-3-methoxybenzaldehyde; 4-methoxybenzaldehyde, and mixtures thereof.

Non-amine neutralized linear alkylbenzene sulfonate The liquid laundry detergent composition contains 10% to 30% by weight of the non-amine neutralized linear alkylbenzene sulfonate. Preferably, the linear alkylbenzene sulfonate is a layered liquid crystal alkylbenzene sulfonate. "Layered liquid crystal" as used herein means a system in which surfactant molecules are constructed in a two-layer laminate of melted surfactant separated by a thin layer of solvent. To do. This structure has both liquid properties in terms of fluid and solid properties in terms of structuring. This structure is characterized by its d-spacing, the sum of the thicknesses of the two layers, and the solvent layer between the sheets. Due to the repetition and periodicity of this structure, a steep x-ray diffraction peak characteristic of the crystal phase can be obtained.

The liquid laundry detergent composition may contain 15% to 25% by weight of the linear alkylbenzene sulfonate, preferably a layered liquid crystal alkylbenzene sulfonate.

The linear alkylbenzene sulfonate can be present in solid form dispersed in a liquid laundry detergent composition. "Solid" as used herein means particles, crystals, layered liquid crystals, and mixtures thereof.

A non-amine neutralized linear alkylbenzene sulfonate is one in which a linear alkylbenzene sulfonic acid is neutralized with a corresponding linear alkylbenzene sulfonate using a neutralizing substance other than an amine. Non-limiting examples of such neutralizing groups include sodium, potassium, ammonium, and mixtures thereof. The non-amine neutralized linear alkylbenzene sulfonate may be sodium linear alkylbenzene sulfonate, potassium alkylbenzene sulfonate, magnesium alkylbenzene sulfonate, or a mixture thereof.

The non-amine neutralized linear alkylbenzene sulfonate may be C _{10 to} C ₁₆ linear alkyl benzene sulfonate, C _{11 to} C ₁₄ linear alkyl benzene sulfonate, or a mixture thereof.

An exemplary linear alkylbenzene sulfonate is C _10- C ₁₆ alkylbenzene sulfonic acid or C _11- C ₁₄ alkylbenzene sulfonic acid. By "linear" is meant herein that the alkyl group is linear. Alkylbenzene sulfonates are well known in the art. Particularly useful are linear sodium alkylbenzene sulfonates, potassium, and magnesium, which have an average number of carbon atoms in the alkyl group of about 11-14.

The liquid laundry detergent composition may comprise an amine neutralized linear alkylbenzene sulfonate. Preferably, the liquid laundry detergent composition comprises less than 10% by weight, even less than 5% by weight, or even less than 3% by weight of the amine-neutral linear alkylbenzene sulfonate of the liquid laundry detergent composition.

Liquid laundry detergent compositions may include non-amine neutralized linear alkylbenzene sulfonates and amine-neutralized linear alkylbenzene sulfonates. The liquid laundry detergent composition comprises 10% to 30% by weight of the composition, a non-amine neutralized linear alkylbenzene sulfonate, preferably an alkaline earth metal non-amine neutralized linear alkylbenzene sulfonate, and the liquid laundry detergent composition. Amine-neutralized linear alkylbenzene sulfonates of less than 10% by weight, or even less than 5% by weight, or even less than 3% by weight, preferably monoethanolamine linear alkylbenzene sulfonates, triethanolamine linear alkylbenzene sulfonates, Or may include a mixture thereof.

The liquid alcohol phase contains 5% to 40% by weight, or even 5% to 20% by weight, or even 5% to 15% by weight of the alcohol of the composition, and the alcohol is 20 to 400% by weight. It has a molecular weight of 50% to 80%, or even 52% to 75% eRH at 20 ° C. as measured through an alcohol eRH test.

The alcohol eRH test is a step of preparing a solution of 80% alcohol in deionized water, followed by a calibrated Rotary Hydrolab meter (in a 14 mm deep plastic sample liner) at room temperature (20 ° C +/- 1 ° C). It includes a step of adding it, a step of calibrating it for 25 minutes, and finally a step of measuring the recorded eRH. The volume of the sample used was sufficient to fill the plastic sample liner.

"Alcohol" as used herein is a compound or mixture, each having a molecular weight of 20-400 when all together and 50% -80% at 20 ° C. as measured via an eRH test. Means either a single compound or a mixture of compounds having an overall eRH of. Without being bound by theory, the alcohol is any compound containing at least one OH unit, preferably a polyol and a diol, more preferably a diol. Preferred diols include glycols.

Alcohols include ethylene glycol, 1,3 propanediol, 1,2 propanediol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, 2,3-butanediol, 1,3 butanediol, diethylene glycol, triethylene glycol, and polyethylene. It can be selected from the group comprising glycols, glycerol formaldipropylene glycols, polypropylene glycols, dipropylene glycol n-butyl ethers, and mixtures thereof.

Alcohols include ethylene glycol, 1,2-propanediol, 2,3-butanediol, 1,3 butanediol, triethylene glycol, polyethylene glycol, glycerol formaldipropylene glycol, polypropylene glycol, dipropylene glycol n-butyl ether, and these. Can be selected from the group containing a mixture of.

More preferably, the alcohol is selected from the group containing 1,2 propanediol, dipropylene glycol, polypropylene glycol, 2,3-butanediol, dipropylene glycol n-butyl ether, and mixtures thereof.

The alcohol can be selected from the group containing 1,2 propanediol, dipropylene glycol, polypropylene glycol, dipropylene glycol n-butyl ether, and mixtures thereof.

The amine detergent composition comprises less than 5% by weight of the hydroxyl-containing amine compound, or even 0.1% to 5% by weight, or even 0.1% to 4% by weight of the composition. Contains hydroxyl-containing amine compounds. As used herein, the term "hydroxyl-containing amine compound" means a compound containing an alcohol (OH) group and an amine group. Hydroxyl-containing amine compounds include monoethanolamine, triethanolamine, diisopropanolamine, triisopropanolamine, monoaminohexanol, 2-[(2-methoxyethyl) methylamino] -ethanol, propanolamine, N-methylethanolamine, Diethanolamine, monobutanolamine, isobutanolamine, monopentanolamine, 1-amino-3- (2-methoxyethoxy) -2-propanol, 2-methyl-4- (methylamino) -2-butanol, 6-amino It can be selected from -1-hexanol, heptaminol, isoetaline, norepinephrine, sphingosine, phenylpropanolamine, and mixtures thereof.

Hydroxy-containing amine compounds can be selected from the group comprising monoethanolamine, triethanolamine, and mixtures thereof.

Preferably, the hydroxyl-containing amine compound has a molecular weight of less than 500, or even less than 250.

The detergent composition may include other amine-containing compounds.

Other Non-Amine Neutralizing Anionic Surfactants Liquid laundry detergent compositions include other non-amine neutralizing anionic surfactants, preferably non-amine neutralizing alkyl sulfates, more preferably non-amine neutralizing ethoxylations. May include alkylsulfates. Non-amine neutralizing anionic surfactants may include non-amine neutralizing alkyl sulfates, non-amine neutralizing ethoxylated alkyl sulfates, or mixtures thereof. Preferably, the non-amine neutralizing alkyl sulfate anionic surfactant is a layered liquid crystal alkyl sulfate anionic surfactant. Non-amine neutralizing anionic surfactants may include layered liquid crystal alkyl sulfates, layered liquid crystal ethoxylated alkyl sulfates, or mixtures thereof.

The liquid laundry detergent composition is a non-amine neutralized alkyl sulfate anionic surfactant, preferably a layered liquid crystal, in an amount of 10% to 30% by weight, or even 15% to 25% by weight, of the laundry detergent composition. It may contain a non-amine neutralized alkyl sulfate anionic surfactant.

The non-amine neutralizing alkyl sulfate anionic surfactant may be present in the form of a solid dispersed in a liquid laundry detergent composition. "Solid" as used herein means particles, crystals, layered liquid crystals, and mixtures thereof.

Non-Amine Neutralizing Non-Amine Neutralizing Alkyl Sulfate Anionic surfactants are those in which the surfactant acid is neutralized to the corresponding salt using a neutralizing substance other than amine. Non-limiting examples of such neutralizing groups include sodium, potassium, magnesium, and mixtures thereof. The non-amine neutralizing alkyl sulfate anionic surfactant may be an alkyl sodium sulfate anionic surfactant, an alkyl potassium sulfate anionic surfactant, an alkyl magnesium sulfate anionic surfactant, or a mixture thereof.

The alkyl sulfate anionic surfactant may be ethoxylated, may not be ethoxylated, or may be a mixture thereof.

The non-amine neutralizing alkyl sulfate anionic surfactant may be an ethoxylated non-amine neutralizing alkyl sulfate anionic surfactant, preferably having an average degree of ethoxylation of 1-5, more preferably 1-3. .. The ethoxylated non-amine neutralized alkyl sulfate anionic surfactant may have an average degree of ethoxylation of 1 or 3 or may be a mixture thereof, preferably ethoxylated non-amine neutralized alkyl sulfate anionic surfactant. Surfactants have an average degree of ethoxylation of 1.

Non-amine neutralizing alkyl sulfate anionic surfactants are C _10-18 alkyl sulfates, preferably C _{10-18 ethoxylated alkyl sulfates, most preferably C 10-18} ethoxylated with an average degree of ethoxylation of 1-5. It may be alkyl sulfate.

The alkyl sulfate anionic surfactant may be ethoxylated, may not be ethoxylated, or may be a mixture thereof. Alkyl sulfate anionic surfactants may be _{C 10-} C ₂₀ primary branched chains and random alkyl sulfates (AS) _{, primarily containing C 12} alkyl sulfates. Alternatively, the alkyl sulfate anionic surfactant may be C _10- C ₁₈ secondary (2,3) alkyl sulfate. Alternatively, the alkylsulfate anionic surfactant may be C _10- C ₁₈ alkyl ethoxysulfate (AE _x S) (x is 1-30). Alternatively, the alkyl sulfate anionic surfactant may be a mixture of all the above alkyl sulfate anionic surfactants. Non-limiting examples of suitable cations for alkyl sulfate anionic surfactants include sodium, potassium, ammonium, amines, and mixtures thereof.

Nonionic Surfactant The liquid laundry detergent composition may include a nonionic surfactant.

The nonionic surfactant may be a naturally or synthetically derived nonionic surfactant. Preferably, the nonionic surfactant comprises a naturally or synthetically derived aliphatic alcohol ethoxylate nonionic surfactant. A preferred synthetically derived aliphatic alcohol ethoxylate nonionic surfactant, or one derived from an oxo synthetic process, i.e. a so-called oxo synthetic nonionic surfactant. The composition may include 0% to 30% by weight, or even 0.1% to 25% by weight, of the composition, an aliphatic alcohol ethoxylate nonionic surfactant.

_{Ethoxylated nonionic surfactants are, for example, C 8 to} C ₂₀ fatty alcohols ethoxylated with primary and secondary alcohol ethoxylates, in particular 1 to 50 mol on average per mol of alcohol, or even 20 mol of ethylene oxide. _{Alcohols, more particularly C 10-} C ₁₅ primary and secondary fatty alcohols ethoxylated with an average of 1-10 mol of ethylene oxide per mole of alcohol, may be used.

The ethoxylated alcohol nonionic surfactant can be, for example, a condensation product of 3-8 moles of ethylene oxide and 1 mole of a primary alcohol having 9-15 carbon atoms.

Nonionic surfactants are of the formula R (EO) _n (where R represents an alkyl chain of 4 to 30 carbon atoms, (EO) represents one unit of ethylene oxide monomer, n is. It may contain an aliphatic alcohol ethoxylate (having an average value of 0.5 to 20).

The above composition may comprise other nonionic surfactants, preferably natural or synthetic nonionic surfactants.

Structuring Agent The composition of the invention may contain less than 2% by weight of the structuring agent of the composition. If a structuring agent is present, the composition preferably comprises 0.05% to 2% by weight, preferably 0.1% to 1% by weight of the structuring agent. The structuring agent can be selected from non-polymeric structuring agents or polymer structuring agents. The structuring agent can be a non-polymeric structuring agent, preferably a crystallizable glyceride. The structuring agent can be a polymer structuring agent, preferably a fiber-based polymer structuring agent, and more preferably a cellulosic fiber-based structuring agent. The structuring agent can be selected from crystallizable glycerides, cellulosic fiber-based structuring agents, TiO ₂ , silica, and mixtures thereof.

Suitable structuring agents preferably impart sufficient yield stress or low shear viscosity to liquid wash independently of any structuring effect of the detergent in the composition, i.e. by any other effect. It is an ingredient that stabilizes the detergent composition. Preferably, the structuring agent imparts a liquid laundry detergent composition to a high shear viscosity of 1-1500 cps at 21 ° C., 20 sec-1 and a low shear viscosity of greater than 5000 cps (at 21 ° C., 0.05 sec-1). Give. Viscosity is measured using an AR 550 rheometer from TA instruments using a flat steel spindle with a diameter of 40 mm and a gap size of 500 μm. High shear viscosities at 20s ^{-1 and low shear viscosities at 0.5 s -1} can be obtained from log shear rate sweeps 0.1-1 to 25-1 at 21 ° C. for 3 minutes.

The above composition may include a non-polymeric crystalline hydroxyl functional structuring agent. Such non-polymeric crystalline hydroxyl functional structuring agents generally contain a crystallizable glyceride, which has been pre-emulsified to aid dispersion in the final liquid laundry detergent composition. May be good. Non-limiting examples of such pre-emulsified external structural agents are (a) crystallizable glycerides; (b) anionic surfactants; and (c) water, and optionally non-aminofunctional. Contains organic solvent. Each of these components will be discussed in detail below.

The structuring agent may be a crystallizable glyceride, preferably cured castor oil, a polymeric crystalline hydroxy functional structuring agent containing "HCO". The HCO, when used herein, may be any cured castor oil or derivative thereof, most commonly as long as it can be crystallized in the non-polymeric crystalline hydroxy functional structuring agent premix. .. Castor oil can include glycerides, especially triglycerides, containing _{C 10-} C ₂₂ alkyl or alkenyl moieties that incorporate hydroxyl groups. To produce HCO, castor oil is hydrogenated to convert double bonds that may be present as ricinorail moieties in the starting oil. As a result, the ricinorail moiety is converted to a saturated hydroxyalkyl moiety, such as hydroxystearyl. The HCO herein can be selected from trihydroxystearin, dihydroxystearin, and mixtures thereof. The HCO can be processed in any suitable starting form, including but not limited to solids, melts, and mixtures thereof. The HCO is typically present in the external structuring system at a concentration of 2% to 10% by weight, 3% to 8% by weight, or 4% to 6% by weight. The corresponding percentage of cured castor oil delivered to the finished laundry detergent product may be less than 1.0%, typically 0.1% to 0.8%. HCO can be present in concentrations of 0.01% to 1% by weight, or even 0.05% to 0.8% by weight, of the laundry detergent composition.

Examples of the HCO used in the present invention include commercially available ones. Non-limiting examples of commercially available HCOs used in the present invention include Rheox, Inc. THIXCIN (registered trademark) manufactured by HIXCIN (registered trademark). Further examples of useful HCOs can be found in US Pat. No. 5,340,390.

Hardened castor oil is preferred, but any crystallizable glyceride can be used within the scope of the present invention. Preferred crystallizable glycerides have a melting point of 40 ° C to 100 ° C.

The structuring agent may include a fibrous structuring agent. The structuring agent may include microfibrillated cellulose (MFC), which is a material composed of nano-sized cellulose fibrils, typically having a high aspect ratio (ratio of length to cross-sectional dimensions). Typical lateral dimensions are 1 to 100 or 5 to 20 nanometers, and longitudinal dimensions range from nanometers to several micrometers. For improved structuring, microfibrillated cellulose preferably has an average aspect ratio (l / d) of 50-200,000, more preferably 100-10,000. Microfibrillated cellulose can be derived from any suitable source, including bacterial cellulose, citrus fibers, and plants (eg, tensai, chicory roots, potatoes, carrots, etc.).

Structuring agent, titanium dioxide, tin dioxide, any forms of modified TiO _2, TiO ₂ or stannic oxide, TiO ₂ coated with bismuth oxychloride or bismuth oxychloride, silica coated with TiO ₂ or metal It can be selected from the group consisting of oxide-coated TiO _{2 and mixtures thereof.} Modified dio ₂ may include carbon modified dio ₂ , metal-doped dio ₂ , or a mixture thereof. The metal-doped TiO ₂ can be selected from platinum-doped TiO ₂ and rhodium-doped TiO _2.

The structuring agent may include silica. Those skilled in the art understand suitable silica materials for use. Silica may include fumed silica.

Water and Equilibrium Relative Humidity The liquid laundry detergent composition comprises 0.5% to 15% by weight of water of the composition. The liquid laundry detergent composition may contain 0.5% to 12% by weight, or even 0.5% to 10% by weight, of water of the composition.

Liquid laundry detergent compositions can have an equilibrium relative humidity of less than 65% at 20 ° C.

The preferred method for measuring the eRH of the composition is via the composition eRH test. The composition eRH test involves adding a sample of the composition to a calibrated Rotary Hydrolab meter (in a 14 mm deep plastic sample liner) at room temperature (20 ° C +/- 1 ° C) for 25 minutes. It includes a step of calibrating and finally a step of measuring the recorded eRH. The volume of the sample used was sufficient to fill the plastic sample liner.

Auxiliary Ingredients The liquid laundry detergent composition contains 20% to 40% by weight of auxiliary ingredients of the composition. Auxiliary ingredients include bleaching agents, bleaching catalysts, dyes, toning dyes, cleaning polymers containing alkoxylated polyamines and polyethyleneimine, stain releasing polymers, surfactants, solvents, stain transfer inhibitors, chelating agents, enzymes, fragrances, encapsulations. It can be selected from the group containing fragrances, polycarboxylate polymers, cellulose polymers, and mixtures thereof.

The water-soluble pouch liquid laundry detergent composition may be present in the water-soluble unit dose article. In such an embodiment, the water-soluble unit-dose article comprises at least one water-soluble film shaped such that the unit-dose article comprises at least one internal compartment surrounded by the water-soluble film. At least one compartment contains a liquid laundry detergent composition. The water-soluble film is sealed to prevent the liquid laundry detergent composition from leaking out of the compartment during storage. However, when the water-soluble unit dose article is added to water, the water-soluble film dissolves and the contents of the internal compartment are released into the cleaning solution.

The compartment should be understood to mean a closed interior space within a unit dose article that holds the composition. Preferably, the unit dose article comprises a water soluble film. Unit-dose articles are manufactured such that a water-soluble film completely surrounds the composition, thereby defining the compartment in which the composition resides. The unit dose article may include two films. The first film may be shaped to include an open compartment to which the composition is added. The first film is then covered with the second film in an orientation that closes the openings in the compartment. The first and second films are then sealed together along the sealing area. The film will be described in more detail below.

The unit dose article may include two or more compartments, further at least two compartments, or even at least three compartments. The compartments may be arranged in a superposition orientation, i.e., so that one is above the other. Alternatively, the compartments may be positioned in parallel orientation, i.e., one adjacent to the other. Further, the compartments may be oriented in a "tire and rim" arrangement, i.e., the first compartment is located adjacent to the second compartment, but the first compartment is at least a portion of the second compartment. However, the second section is not completely enclosed. Alternatively, one compartment may be completely enclosed within another compartment.

The film of the present invention is water-soluble or water-dispersible. The water-soluble film preferably has a thickness of 20 to 150 micrometers, preferably 35 to 125 micrometers, even more preferably 50 to 110 micrometers, most preferably about 76 micrometers.

Preferably, the film has at least 50%, preferably at least 75%, or even at least 95% water solubility as measured by the methods described herein after the use of a glass filter with a maximum pore size of 20 micrometers. ..

To a pre-weighed 3 L beaker, 5 g ± 0.1 g of film material is added and 2 L ± 5 mL of distilled water is added. This is vigorously stirred at 30 ° C. for 30 minutes on an electromagnetic stirrer (Labline model number 1250 or equivalent) set at 600 rpm and a 5 cm electromagnetic stirrer. The mixture is then filtered through a folded qualitative sintered glass filter with a pore size (up to 20 micrometers) as defined above. Water is dried from the recovered filtrate by any conventional method and the weight of the remaining material is weighed (this is the dissolved or dispersed fraction). The percentage of solubility or dispersity can then be calculated.

The preferred film material is preferably a polymeric material. Film materials can be obtained, for example, by casting, injection molding, extrusion molding or injection extrusion molding of polymeric materials, as is known in the art.

Preferred polymers, copolymers, or derivatives thereof suitable for use as pouch materials are polyvinyl alcohol, polyvinylpyrrolidone, polyalkylene oxide, acrylamide, acrylic acid, cellulose, cellulose ether, cellulose ester, cellulose amide, polyvinyl acetate, It is selected from polycarboxylic acids and salts, polyamino acids or peptides, polyamides, polyacrylamides, maleic acid / acrylic acid copolymers, polysaccharides containing starch and gelatin, and natural rubbers such as xanthan and cara rubber. More preferred polymers are selected from polyacrylate and water soluble acrylate copolymers, methyl cellulose, sodium carboxymethyl cellulose, dextrin, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, maltodextrin, polymethacrylate, most preferably polyvinyl alcohol, polyvinyl alcohol copolymers and It is selected from hydroxypropyl methylcellulose (HPMC), as well as combinations thereof. Preferably, the concentration of the polymer in the pouch material, eg PVA polymer, is at least 60%. The polymer may have any weight average molecular weight, preferably from about 1000 to 1,000,000, more preferably from about 10,000 to 300,000, even more preferably from about 20,000 to. It is 150,000.

The polymer mixture may be used as the pouch material.

A preferred film is one that exhibits good dissolution in cold water, i.e. unheated distilled water. Preferably, such films exhibit good dissolution at 24 ° C, even more preferably 10 ° C. Good dissolution means that the film is at least 50%, preferably at least 75%, or even at least when measured by the methods described herein after the use of a glass filter with a maximum pore size of 20 micrometers, as described above. It means that it exhibits 95% water solubility.

Preferred films are those supplied by Monosol under trade reference numbers M8630, M8900, M8779, M8310.

The film may be opaque, translucent or transparent. The film may include a printed area.

The print area can be obtained using standard techniques such as flexographic printing or inkjet printing. Preferably, the print area is obtained via flexographic printing, in which case the film is printed and then molded into the shape of an opening compartment.

The film may contain an aversive agent such as a bitterant. Suitable bitterants include, but are not limited to, naringin, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or mixtures thereof. Any suitable concentration of aversive agent may be used on the film. Suitable concentrations include, but are not limited to, 1 to 5000 ppm, or even 100 to 2500 ppm, or even 250 to 2000 rpm.

Manufacturing Method The liquid laundry detergent composition of the present invention can be manufactured using any suitable manufacturing technique known in the art. Those skilled in the art will understand suitable methods and equipment for producing the compositions according to the invention.

The HCO premix can be formed by melting the HCO and adding it to a small volume of warm liquid laundry detergent composition (no enzyme or fragrance material). The HCO premix is then added to the other ingredients to form a liquid laundry detergent composition.

Methods of Use The compositions or unit dose articles of the invention may be added to a wash solution in which the laundry is already present or to which the laundry is added. The above composition or article may be used during the operation of the washing machine and may be added directly to the drum or to the dispenser drawer. The washing machine may be an automatic washing machine or a semi-automatic washing machine. It may be used in combination with other laundry detergent compositions such as fabric softeners or stain removers. It may be used on stains as a pretreatment composition before being added to the cleaning solution.

The following compositions were prepared: Composition A is the composition according to the present invention, and Composition B is a comparative composition representative of those currently on the market.

The following fragrances were added to the above composition.

Fragrance A contained 12.75% by weight of aldehyde fragrance A and 6.45% by weight of ketone fragrance A.

Fragrance B contained 11.1% by weight aldehyde fragrance B and 14.5% by weight ketone fragrance B.

The fragrance C contained 0.6% by weight of aldehyde fragrance C and 1.7% by weight of ketone fragrance C.

The color stability of various composition and fragrance combinations was tested over time. The color stability of the liquid laundry detergent composition was tested by aging the test sample at 50 ° C. for 2 weeks. The colors of the untreated and aged samples were measured using a ColorQuest XE spectrophotometer by HunterLab to give L ^* , a ^* −, and b ^* − values. Spectrophotometric measurements were performed untreated and at 2 weeks. Sample photos were taken at the same intervals.

The temperature of the product measured was 18 ° C to 25 ° C. Samples aged in a constant temperature room were left overnight to equilibrate before measurement. Disposable polystyrene with a capacity of 2.5-4 mL, outer dimensions: 12.5 x 12.5 x 45 mm and inner dimensions: 10 x 10 x 45 mm, optical path 10 mm, manufactured by VWR, or another supplier of the same standard. PS) A macro cuvette was used. The cuvette has two different sides: opaque or transparent with an arrow above it. Since the light needs to pass through the transparent side, the cuvette must be aligned with the arrow and placed in the optical path of the light beam. The product was carefully filled in small cuvettes (to avoid air bubbles). The sample must completely cover the measurement port for consistent results. Before measuring the color, it is essential to remove air bubbles in the liquid. Bubbles were removed using centrifugation: The product was centrifuged in Eppendorf 5702 or equivalent equipment at 2500 rpm for 5 minutes. The volume to centrifuge depended on the tube in use. A minimum volume of 15 mL is required. The maximum filling level should not exceed 3/4 of the centrifuge tube. If emulsion, silicone and / or perfume microcapsules are present in the formulation, the test should be performed in reflective mode. Preparation, stabilization and measurement were performed according to the instrument's instructions.

The transmitted or reflected color of the sample was measured using a ColorQuest XE spectrophotometer manufactured by HunterLab. The instrument uses a diffuse integrating sphere with a white line to emit light onto the sample. The spectrum of the sample is collected by the instrument and the spectrum data is collected by software CIE L ^* , a ^* , b ^* , and ΔE ^* 2000 (in the formula, L * is the brightness of the sample and a ^* is the redness or green of the sample. Degree, where b * is the yellowness or blueness of the sample). ΔE ^{* 2000 is a color difference of the L *} , a ^* , b ^* chromaticity standard that gives a perceptible or acceptable color difference based on a standard sample or consumer-related data. The performance of the equipment is confirmed by the usual standardization of chromaticity meters using the calibration tiles supplied by HunterLab.

Color stability of compositions A and B with different perfume compositions was measured after untreated and aged at 50 ° C. for 2 weeks. The results after aging were compared with the color measurements of the untreated sample and the color differences were recorded. The results can be seen in Table 2.

As can be seen from Table 2, for all the perfume compositions tested, the composition A according to the present invention showed a lower level of discoloration than the untreated sample than the composition B containing the same perfume.

The dimensions and values disclosed herein should not be understood to be strictly limited to the exact numbers given. Rather, unless otherwise indicated, each such dimension shall mean both the stated value and the functionally equivalent range around that value. For example, the dimension disclosed as "40 mm" shall mean "about 40 mm".

Claims (17)

Liquid laundry detergent composition
-With 0.001% to 5% by weight of the composition, an aldehyde-containing air freshener material, a ketone-containing air freshener material, or an air freshener material selected from a mixture thereof.
− With 5% to 40% by weight of dipropylene glycol of the composition,
− 10% to 30% by weight of the composition, non-amine neutralized linear alkylbenzene sulfonate,
-With 0 % by weight hydroxyl-containing amine of the composition,
-With 0.5% to 15% by weight of water of the composition,
Liquid laundry detergent composition, including. Liquid laundry detergent composition
-With 0.001% to 2% by weight of the composition, an aldehyde air freshener material, a ketone air freshener material, or an air freshener material selected from a mixture thereof.
− With 5% to 40% by weight of dipropylene glycol of the composition,
− 10% to 30% by weight of the composition, non-amine neutralized linear alkylbenzene sulfonate,
-With 0 % by weight hydroxyl-containing amine of the composition,
-With 0.5% to 15% by weight of water of the composition,
Liquid laundry detergent composition, including. The fragrance material is (2E, 6E) -nona-2,6-dienal, 2,6,10-trimethylundec-9-enal; 1-methyl-4- (4-methylpenta-3-enyl) cyclohexa. -3-En-1-carbaldehyde; (E) -1- (2,6,6-trimethyl-1-cyclohex-2-enyl) but-2-en-1-one; (E) -4-( 2,6,6-trimethyl-1-cyclohex-2-enyl) Buta-3-en-2-one; 2-benzylideneheptanal; (E) -1- (2,6,6-trimethyl-1-cyclo) Hexenyl) Buta-2-ene-1-one; 4- (2,6,6-trimethylcyclohexane-1-yl) Buta-3-en-2-one; 3- (4-tert-butylphenyl) propanal , (2Z) -2-benzylidenehexanal; 3- (4-methoxyphenyl) -2-methylpropanal; 3,7-dimethylocta-2,6-dienal; 2- (3,7-dimethylocta-6- Enoxy) acetaldehyde; 3- (4-propan-2-ylphenyl) propanal; 3- (4-propan-2-ylphenyl) butanal; (E) -1- (2,6,6-trimethyl-1-) Cyclohexa-1,3-dienyl) But-2-en-1-one; 1- (2,6,6-trimethyl-1-cyclohexa-3-enyl) but-2-en-1-one; 4-ethoxy -3-Hydroxybenzaldehyde; 5-methylhepta-2-ene-4-one; 3- (2-ethylphenyl) -2,2-dimethylpropanol; 3- (3-isopropylphenyl) butanal; 1- (5,5) 5-Dimethyl-1-cyclohexenyl) penta-4-en-1-one; (E) -3-methyl-4- (2,6,6-trimethyl-1-cyclohex-2-enyl) porcine-3-3 En-2-one; 3- (1,3-benzodioxol-5-yl) -2-methylpropanol; 1,3-benzodioxol-5-carbaldehyde; 2- (phenylmethylidene) Octanal; (E) -1- (2,4,4-trimethylcyclohex-2-en-1-yl) buta-2-ene-1-one; 3- (4-methyl-1-cyclohexa-3-3) Enyl) butanal; 2,6-dimethylhepta-5-enal; 6-methylhepta-5-en-2-one; methylphenyl) methylidene] heptanal; 5,5-dimethyl-2,3,4,4a,6 7-Hexahydro-1H-naphthalen-2- Calvaldecide; 2- [2- (4-methyl-1-cyclohexa-3-enyl) propyl] cyclopentane-1-one; 2,4-dimethylcyclohexa-3-ene-1-carbaldehyde; undeca-10 The liquid laundry detergent composition according to claim 1 or 2, selected from the group comprising −enal; 4-hydroxy-3-methoxybenzaldehyde; 4-methoxybenzaldehyde, and mixtures thereof. The fragrance material is (E) -1- (2,6,6-trimethyl-1-cyclohex-2-enyl) but-2-en-1-one; (E) -4- (2,6). 6-trimethyl-1-Cyclohex-2-enyl) Buta-3-en-2-one; (E) -1- (2,6,6-trimethyl-1-cyclohexenyl) But-2-en-1- On; 4- (2,6,6-trimethylcyclohexane-1-yl) buta-3-en-2-one; 3,7-dimethylocta-2,6-dienal; 3- (4-propan-2-yl) Ilphenyl) butanal; (E) -1- (2,6,6-trimethyl-1-cyclohexanone-1,3-dienyl) buta-2-ene-1-one; 1- (2,6,6-trimethyl) -1-Cyclohexan-3-enyl) but-2-ene-1-one; 4-ethoxy-3-hydroxybenzaldehyde; 3- (2-ethylphenyl) -2,2-dimethylpropanol; 3- (3- (3-) Isopropylphenyl) butanal; 1- (5,5-dimethyl-1-cyclohexenyl) penta-4-ene-1-one; (E) -3-methyl-4- (2,6,6-trimethyl-1-one) Cyclohex-2-enyl) Buta-3-en-2-one; 1,3-benzodioxol-5-carbaldehyde; 2- (phenylmethylidene) octanal; 2,4-dimethylcyclohexa-3-ene The liquid laundry detergent composition according to claim 3, which is selected from the group containing -1-carbaldehyde; undeca-10-enal; 4-hydroxy-3-methoxybenzaldehyde; 4-methoxybenzaldehyde, and a mixture thereof. The liquid laundry detergent composition according to any one of claims 1 to 4, wherein the aldehyde-containing air freshener material, the ketone-containing air freshener material, or a mixture thereof has a molecular weight of 75 to 450. The liquid laundry detergent composition according to any one of claims 1 to 5, wherein the aldehyde-containing air freshener material, the ketone-containing air freshener material, or a mixture thereof has a logP of 0.25 to 7. The aldehyde-containing air freshener material, the ketone-containing air freshener material, or a mixture thereof is 3.3 × 10 ^-3 Pa to 1.3 × 10 ⁴ Pa (2.5 × 10 ^-5 mmHg to 9.5 × 10). The liquid laundry detergent composition according to any one of claims 1 to 6, which has a vapor pressure of ^{1 mmHg) at 25 ° C.} The liquid laundry detergent composition according to any one of claims 1 to 7, which comprises 15% by weight to 25% by weight of the non-amine neutralized linear alkylbenzene sulfonate of the composition. The liquid laundry detergent composition according to claim 4, wherein the non-amine neutralized linear alkylbenzene sulfonate is C _{10 to} C ₁₆ linear alkyl benzene sulfonate, C _{11 to} C _{14 linear alkyl benzene sulfonate, or a mixture thereof.} The non-amine-neutralized linear alkylbenzene sulfonates, sodium linear alkyl benzene sulfonate, potassium linear alkyl benzene sulfonate, magnesium linear alkylbenzene sulfonate, or mixtures thereof, any one of the preceding claims Liquid laundry detergent composition according to. The liquid laundry detergent composition according to any one of claims 1 to 10, which comprises another non-amine neutralizing anionic surfactant. The liquid laundry detergent composition according to any one of claims 1 to 11, wherein the composition contains 5% by weight to 20% by weight of the dipropylene glycol of the composition. The liquid laundry detergent composition according to any one of claims 1 to 12 , which comprises 0% by weight to 30% by weight of the nonionic surfactant of the composition. The liquid laundry detergent composition according to any one of claims 1 to 13 , which comprises a structuring agent. A cleaning polymer containing an auxiliary component, the auxiliary component containing a bleaching agent, a bleaching catalyst, a dye, a toning dye, an alkoxylated polyamine and polyethyleneimine, a stain-releasing polymer, a surfactant, a solvent, a dye transfer inhibitor, a chelating agent, The liquid laundry detergent composition according to any one of claims 1 to 14 , selected from the group containing enzymes, fragrances, encapsulated fragrances, polycarboxylate polymers, cellulose polymers, and mixtures thereof. A water-soluble unit dose article comprising a water- soluble film and the detergent composition according to any one of claims 1 to 15. The unit-dose article according to claim 16 , wherein the unit-dose article comprises at least two compartments.